The fleet of hybrid electric vehicles in the United States, with over 4 million units sold through April 2016, is the second largest in the world after Japan (over 5 million). American sales of hybrid electric vehicles represent about 36% of the more than 11 million hybrid sold worldwide through April 2016. Since their inception in 1999, a total of 4,058,258 hybrid electric automobiles and sport utility vehicles have been sold in the country through May 2016. Sales of hybrid vehicles in the U.S. began to decline following the financial crisis of 2007–08, and after a short recovery, began to decline again in 2014 due to low gasoline prices. Hybrid sales in the American market achieved its highest market share ever in 2013, capturing 3.19% of new car sales that year, and dropped below 2% by April 2016.
The top selling hybrid electric vehicle in the country is the conventional Toyota Prius, which has sold 1,643,000 units since 2000 through April 2016, representing a 40.8% market share of all hybrids sold in the U.S. since 1999. Cumulative sales of the Prius nameplate totaled 1,932,805 units delivered through April 2016, representing a 48.0% market share of total hybrid sales in the U.S. As of April 2016, the conventional Prius is followed by the Toyota Camry Hybrid, with 345,640 units sold since 2006, the Honda Civic Hybrid, with cumulative sales of 234,610 vehicles since 2002, the Ford Fusion Hybrid with 166,341 units since 2009, and the Toyota Prius c with 165,075 units since 2012.
California has been the state leading hybrid sales in the U.S. with 55,553 vehicles sold in 2009, 74,932 in 2008, and 91,417 in 2007. In 2009 it was followed by New York (15,438) and Florida (14,949). In terms of new hybrids sold per capita, the District of Columbia was the leader in 2009 with 3.79 hybrids per 1000 residents, followed by California (1.54) and Washington (1.53). The top 5 U. S. metropolitan area markets for sales of hybrid electric vehicles in 2009 were Los Angeles (26,677), New York (21,193), San Francisco (15,799), Washington, D.C. (11,595), and Chicago (8,990). From January to July 2013, the three cities with the highest electric drive car registrations, including hybrids, all-electric cars and plug-in hybrids, were all located in California: Atherton (19.4%) and Los Altos (16.1%) in the Silicon Valley, followed by Santa Monica (15.0%), located in Los Angeles County.
Purchases from the Obama administration occurring for 25% of Ford and General Motors hybrid-electric vehicles sold between January 2009 and late 2010. During this period hybrids accounted for about 10% of the 145,473 vehicles bought by the U.S. General Services Administration.